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Patent Searching and Data


Title:
METHOD FOR PRODUCING 1,6-HEXANEDIOL AND CAPROLACTONE
Document Type and Number:
WIPO Patent Application WO/2010/115798
Kind Code:
A3
Abstract:
The invention relates to a method for producing 1,6-hexanediol and caprolactone, preferably of at least 99.5% purity, which are especially substantially free from 1,4 cyclohexanediols, starting from a carboxylic acid mixture which is obtained as a byproduct of the catalytic oxidation of cyclohexane to cyclohexanone/cyclohexanol with oxygen or gases containing oxygen and by extraction of the reaction mixture with water, and by hydrogenation of the carboxylic acid mixture, esterification and hydrogenation of a partial flow to hexanediol and cyclization of 6-hydroxycaproic ester, the 1,4-cyclohexanediols being removed either during fractionation of the esterification mixture or finally from the caprolactone.

Inventors:
PINKOS ROLF (DE)
BREUNINGER DANIEL (DE)
TEBBEN GERD-DIETER (DE)
Application Number:
EP2010/054285
Publication Date:
December 09, 2010
Filing Date:
March 31, 2010
Export Citation:
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Assignee:
BASF SE (DE)
PINKOS ROLF (DE)
BREUNINGER DANIEL (DE)
TEBBEN GERD-DIETER (DE)
International Classes:
C07C29/149; C07C29/80; C07C31/20; C07D315/00
Domestic Patent References:
WO2008152001A12008-12-18
WO2006005504A12006-01-19
Foreign References:
US3933930A1976-01-20
DE102004054047A12006-05-11
Attorney, Agent or Firm:
BASF SE (67056 Ludwigshafen, DE)
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